Reduction to hollow wire of tubular shells of gold.



No. 654,590. Patented my 3|, |900, H. n. BAKER.

REDUCTION TO HOLLOW WIRE OF TUBULAR SHELLS OF GOLD. [Apphcauoh filedMar. 3, 1900.) (No Modem Y 2 Sheets-Shee l.

. No.. 654,590. Patented July 3|, |900. H. B. BAKER. REDUCTION T0 HLLWWIRE 0F TUBULAR SHELLS 0F GOLD.

(Application filed Mar. 3, 1900.)

2 Sheetev-Sheet 2 (No Model.)

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lUNlrnn krares PATENT HENRY R. BAKER, OF ATTLEBOROGH, MASSACHUSETTS,ASSIGNOR OF ON E'- l-IALF TO THE R. FrSIMMONS COMPANY, OF SAME PLACE. l

REoUcrioN ro HotLoW WIRE' 0F TUeuLAa saette or coto.

SPECFICATON forming part of Letters Patent No. 654,590, dated July 31,1900.

Application llled March 3, 190D. Serial No. 7,152; (No model.) l

To all whom t may concern.: The machine consists of a heavy frame l.

Beit known that I, HENRY R. BAKER, a citi- (Shown in Fig. l.) The framel has a bearz'en of the United States, residing at North ing for shaftB, driven by the pulley A in Attleborough, in the county of Bristol andthe direction of the arrow in Fig. l. The 55 State of Massachusetts,have invented a cershaft B is hollow, as shown, to allow the work tainnew and useful Improvement in the Reto pass through. One end of theshaft is enduction to Hollow Wire of Tubular Shells of larged indiameter at B' and carries beaters O Gold or Like Metal, of which thefollowing is and followers D in suitable slots cut across the a full,clear, and exact description, reference end of the shaft. Thesefollowers and beaters 6o Io being had to the drawings which accompanyare retained in place longitudinally, but perand form a part of thisspecification, in mitted to `reciprocate radially in said slots bywhichmeans of a steel ring attached to the enlarged Figure l is alongitudinal vertical section front face of the hollow shaft B by meansof through the rotary reducing-machine, showscrews, the holes for whichare shown in Figs.y 6 5 15 ingthe driving-pulleyAand its adja'centparts3 and 4 and the screws in place and the ring in surface view, the otherparts broken away also. (See letters E E in Figs. l and 2.) It to showsection, and the standard, arbor, and will be seen from the drawingsthat beaters adjacent parts also shown in place in the ma- O andfollowers D are compelled to rotate tochine, the tubular gold shell L,which is ungether with shaft B, but can move radially in 7o zo dergoingreduction, being shown also in sectheir slots.

tion. Fig. 2 is a similar sectional view of the The frame l has fittedto it a hardened-steel working parts to that shown in Fig. l, dering H,located concentric withshaft B and tached, and showing the beaters andgold forcedinitsseat,soas tobestationary. Withshell in position whencompression is not yet in ring H are located a series of rollers G. The75 25 being made by said beaters. Fig. 3 isa front rollers are keptparallel to each other and view of the working parts with the beaters tothe axis of shaft B and also kept equal closed, as in Fig. l. Fig. e isa similar view distances apart by the containingcage Q. to Fig. 3 withthe beaters open, as in Fig. 2. This cage Q is a cylinder or shell of athick- Fig. 5 is a perspective view of the cage which ness somewhat lessthan the diameter of roll- 8o 3o carries the rollers, with the rollersshown in ers Gand is provided with cylindrical grooves place. that formreceptacles for the rollers. The The lettering in all the figures isuniform.` rollers are kept in place in the cage Q, by a The object of myinvention is to reduce the retaining-ring F. (Shown in Fig. l.)thickness and extend the length of malleable At a suitable distance fromframe l a sup- 85 35 metal tubular shells, such as the hollow in'- portl is fastened to the floor. This support gots of gold or like metal usedin the manucarries a standard O, which is free to rotate, facture ofhollow Wires for gold chains or like as shown at P', in P. The standard0 furpurposes, in which the compression and lonnishes a bearing O' forthe shank or rod M, gitudinal extension are produced by hamallowing therod to rotate in 0,'as indicated 9o 4o mering devices which by a rapidsuccession by arrows, but keeping M from moving in the of sudden blowsaround all parts of the cyldirection of its axis by means of collars NN', inder cause a swaging action, thus producing fastened to rod M byset-screws. The height a better and more even product than could ofbearing in standard O is such as to bring be produced by the action ofrolls or the like the rod M in line with the axis of shaft B. On 95 45and in which an even texture is produced the end of the rod M isthreaded a hardenedthroughout and liability of splitting or unsteelarbor K of suitable length and of a dievenness of thickness on differentsides. of ameter corresponding to the inside diameter said tubular shellis avoided. Forthis purof the Work or ingot L, as shown in Figs. l poselemploy .the connected mechanism, the and 2. 10.0 5o construction andoperation of which I will The operation of the machine is as follows;

new describe. lThe first step after the machine is started and runningin the direction of the arrows in-Fig. 1 is to place the ingot L asshown in Fig. 2. This is done by loosening collar N, Fig. 1, sliding rodM and arbor K to the right far enough from the machine to allow thearbor K to swing in a horizontal plane by turning standard O about inthe base P. In this manner sufficient spacebetween frame I and the endof arbor K is obtained to allow ingot L to be passed over the end ofarbor K. Arbor K is then returned to position as shown in Fig. 1, collarN is tightened, and the ingot L is brought up against the dies, as inFig. 2, ready to be reduced.

Fig. 3 shows the dies C in their closed position viewed from the end ofthe machine. Fig. 4 shows the dies C in their open position.

' The opening and closing is caused by the rotation of shaft B, whichcarries the beaters C and followers D around, so as to alternately bringthe followers out of engagement with rollers Gr, as inV Fig. 4, or inengagement, as shown in Fig. 3. The position as in Fig. 4 of the beatersC and followers D is owing to the centrifugal force which causes thebeaters and followers to ily outward from the position shown in Fig. 3when shaft B has rotated through an angle sucient to carry followers Dclear of rollers Gr. When shaft B, beaters C, and followers D are inposition as in Fig. 4, it will be seen that the space between the arborK and beaters C is larger than the space shown in Fig. 3 and that inthis position of beaters the ingotL can be started in between thebeaters by pushing it toward the left in Fig. 2 ready to be reduced bythe succeeding closing of the beaters, as shown in Figs. l and 3. Thebeaters, as shown in Figs. l and 2, have the edges C C' where the workcenters suitably rounded, thus bringing the strain away from the ed ges,also making it easier for the ingot to enter. VThe feedV longitudinallyof the ingot takes place by the hand of the operator each time thebeaters are in position as in Fig. 4, and every time the beaters areclosed the ingot receives a slight rotary motion in the same directionas the shaft B revolves, as indicated by arrows around L and M, Fig. 1.

It will be observed that by means of the sliding rod M various lengthsof arbors K can be used interchangeably, as desired, and by means of theadjustments N N the arbor can be set at any depth in the machine whichmay be necessary. The shell of any metal which is being reduced clearsitself over the inner end of the arbor K and thence advances as itsforward end is pushed by hand into the machine in tubular form withoutany internal core. The hollow gold shell or ingot in operation isentirely controlled by the hand of the operator just as he desires tomove it, either forward or back on the mandrel or allow it to turnaround the mandrel, if desired. It will also be seen that the standard Obeing adapted to rotate on its own axis in the sup= port P the rod M,carrying the arbor K, -can be slipped through its journal-bearing in theupper end of O (the attachment N being released) and swung aside in O asa pivot and a new tubular shell be at once inserted without interferingin any degree with the centering, supports, or distances of the variousparts, thus producing absolute evenness of result in all cases. While lshow certain specific forms of securing these latter results, as N N O PP', by screws, journals, and rotating rod and standard, l do not confinemyself rigidly to the specific forms or attachments shown, but vary thesame to suit special requirements, as would be done by any capablemechanic skilled in the art to which my invention pertains and withoutthe exercise of further invention.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is

l. The improvement in means for the reduction to hollow wire of tubularshells of gold or like metal, consisting in the combination withalternately-reciprocated beaters of a rotary reducing-machinesubstantially as described, of a rotatable arbor, for the support ofsaid shells within said machine, said arbor provided with a guide-rodjournaled to rotate upon its axis in a suitable support at its attachedend, said guide-rod and arbor adapted to be rotated by the rotarybeaters of said machine, said guide-rod rigidly secured againstlongitudinal movement thereof by means of attachments secured thereto,and

said arbor adapted to be secured by said atj 4 the operator, saidelongated shells adapted to pass out of said machine in tubular form andwithout internal support, substantially as deA scribed. v

2. ln combination with a rotary reducing# machine, having rotary beaterssubstantially as described, a fixed support in frontof the machine, avertical standard rising fromsaid support, and rotatable on its axistherein, said standard provided with a horizontal journaled bearing atits upper end, together with a horizontal rod, carrying ashell-supporting arbor at its free end, within the jaws of said machine,said rod constructed to be rotated on its axis by means of said rotarybeaters adjustable longitudinally in said bearing of said standard, andadapted to be secured against longitudinal movement during the operationthereof by suitable stops applied thereto, substantially as and for thepurpose described.

3. In combination with a rotary reducingmachine, substantially asdescribed, having rotating beaters, a hollow supporting-shaft IOO IIO

and means for alternately compressing said beaters upon a central massbetween the same, and releasing said mass, an arbor located between saidbeaters, said arbor held against longitudinal displacement, and adaptedto receive around the same a hollow ingot or shell of gold or likemetal', said arbor and said shell acted on and rotated by said beaters,and said shell, as it is reduced thereby adapted to be pushed graduallythrough said machine, thereby clearing said longitudinally-fixed arbor,and advancing in tubular form and without any core or internal supportin contact with said shell, togetherl with an adjustable support,outside said machine, for said arbor, substantially as described.

4. In combination with the rotary reducingmachine, substantially asdescribed, a fixed support, P, a vertical standard, O, adapted to berotated in said support, a transverse j ournal-bearing, O', in the upperpart thereof, a horizontal rod and arbor, M, K, journaled rotatably insaid bearing, said arbor, K, adjustably held between the beaters, C, C,of said machine, substantially as and for the purpose described.

5. In combination with the rotary reducingmachine, having rotary beaterssubstantially as described, the shell-supporting arbor, K, detachablysecured between the beaters thereof, C, C, the longitudinally-adjustablehorizontal rod, M, extended from said arbor out of the said machine, andadjustable means of support for said rod,to hold the same againstlongitudinal displacement during the rotation thereof, said rod adaptedto be rotated on its own axis in said support by said rotary beaters,substantially as described.

6. In combination with the rotary reducingmachine, I, havingdriving-pulley, A, hollow shaft, B, rotary beaters C, C, and followersD, D, and compressing-rolls, G, G, the shell-supporting arbor, K,interposed between said beaters, the rod, M, secured to said arbor, thejournaled standard, O, said rod adapted to be rotated therein by saidrotary beaters, and adj usting-clamps, N, N', to hold said arbor fromlongitudinal movement into the said machine during the rotation thereof,and adapted when released, to permit said arbor to be slid back fromsaid machine, and after--4 ward again replaced, without affecting itsrelative position therein, substantially as described,

7. The improved means of reducing to hollow wire, tubular shells of goldor the like, consisting of the rotary reducing-machine, substantially asdescribed, the rotatable arbor, K, rod, M, adjustments, N, N,journalbearing, O', standard, O, said standard rotatable on its axis,and fixed support, 13 having journal-bearing, P', for said standard, thewhole constructed and adapted to be operated substantially as and forthe purposes herein set forth.

In testimony whereof I have hereunto affixed my signature this 26th dayof l'ebruary,`

A. D. 1900. n,

HENRY R. BAKER.- Witnesses:

ARTHUR C. MAIR, PHILIP E. BRADY.

